Poration of new yore



No. 753,017. PATEN'IBD FEB. 2 3, 1904, C. W. WALKER. TIPI: WIIITINGMACHINE.

APPLICATION FILED NOV. 2l, 1002.

INVENTR:

IZMII. muc/25,

, H15 ATTm-RNEYQ WITNEESET@ UNITED STATES Patented February 23, 1904.

PATENT OEEICE.

CHARLES w, WALKER, O'E RRIDGEPORT, CONNECTICUT, AssIeNOR To Yosr WRITINGMACHINE COMPANY, OE ILION, NEW YORK, A COR;

PORATION OF NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming .part of Letters Patent N o. 753,017, datedFebruary 23, 1904.

Application tiled November 21, 1902. Serial No. 132,224. (No moileh) Toall whom, t may con/cern:v

Be it known that I, CHARLES W. WALKER, a citizen of the United States,and a resident of Bridgeport, in the county of Faireld and State ofConnecticut, have invented certain new and useful Improvements in rI`;ype-Vl7rit ing Machines, of which the following is a specication.

My invention relates to type-writing machines, and more particularly tocarriage-supporting means of the general description shown in LettersPatent No. 568,645, granted to me September 29, 1896, and has for itsmain Object to provide simple and efficient connections for maintainingthe antifriction balls or 'rollers in fixed relation to the carriage.

To the above and other ends, which will hereinafter appear, my inventionconsists of the novel features of construction, arrangements of parts,and combinations of devices to be hereinafter described and claimed.

' In the accompanying drawings, wherein like reference charactersdesignate like parts in the various views, Figure 1 is a rear elevationof suiiicient number of parts of a type-writing machine to illustrateone form or embodiment of my invention. Fig. 2 is a bottom planview ofthe same. Fig. Sis an end elevation of the parts shown in Figs. 1 and 2.Fig. 4 is a detail perspective view of the so-called antifriction-rollercarrier or separator.

In the drawings, 1 2 designate fixed rails, which are secured to the topplate of the machine by suitable brackets 3, and the inner faces of therails are grooved, as indicated at 4, for the reception ofantifriction-rollers 5 and 5, A carriage-bar 6 extends longitudinally ofthe carriage and has grooved tracks 7 upon opposite faces thereof, whichare like- Vwise adapted to receive the antifrictiOn-rollers 5. It willbe understood that this so-called carriage-bar 6 constitutes a part ofthe carriage of the type-writing machine and through theantifriction-rollers either wholly or partly supports the carriage inits movement from side to side of the machine. An antifrictionrollerseparator or carrier is provided, which rier in place.

the bar 8 arepivoted two pulleys 14 14, the

planes of which are parallel to the plane ot' the bar, and their pivotalcenters 15 extend at right angles to the plane of the bar. From anexamination of Figs. 2 and 3 it will be observed that suliicient spaceis, maintained between the carriage-bar 6 and the fixed rails 1 2 topermit the ears 9 and 12 to pass upwardly between the tracks on thecarriage and the tracks formed in the fixed rails, so that theantit'riction-rollers 5 and 51L are loosely seated in their respectiveopenings in the sepa- -rator or carrier and are maintained thereby atfixed distances apart and support the car- A flexible connection orligament 16 of any suitable character, such as a cord, is connected atone end to a depending pin 17, that extends frogn the lower face of thecarriage-bar, whereas the bight or loop in the connection passes aroundthe pulley 14, and the opposite end of the connection is secured to adepending stud Or pin 18, secured to the xed rail 1 of the machine. Asecond flexible connection 19 is secured in a like manner to a dependingstud 20, which extends downwardly from the carriage-bar and passesaround the pulley 14', and has its opposite` end secured to a stud 21,that extends downwardly from the fixed rail 1. These connections aremaintained taut, and the slack thereof may be taken up in any suitablemanner. In the present instance the studs 17 and 2O are apertured, and aVknot 16EL or 19a' prevents the end of the associated connection 'fromslipping through the aperture in the stud, thus connecting one end ofeach of the connections to the carriage-bar. The opposite end of eachconnection may be secured to its associated stud by a jam-nut 22, whichprovides means for taking up any slack that may exist in the connectionand regulates the position of the carrier relatively to the carriage.

In addition to the means referred to for taking up the slack in theflexible connections at will, I prefer to employ means for automaticallytaking up any slack that may occur by reason of a stretching of theconnections or through other causes. I therefore provide a contractilespring a or b at or intermediate of the ends of the flexibleconnections. Thus the spring o is connected at one end to an end of onesection of the connection 16, whereas the other end of the spring isconnected to one end of the other section of the connection. It will beunderstood that the position of the spring a at or near one end of theconnection locates it at a point in the connection which does cooperatewith the pulley 14, and therefore does not interferewith the rollingaction of the connection on the pulley. The connection 19 is likewiseconnected to a contractile spring b, which is connected and acts in thesame manner as the spring a.

Froman examination of Fig. 2 it will be seen that the flexibleconnections extend in the general direction of the travel of thecarriage and that said connections cause the rollers always to maintaintheir proper relationship to the carriage and to the frame of themachine. In other words, the flexible connections maintain fixedrelations between the carrier and the frame of the machine (or the fixedrails 1 and 2 thereof) and between the carrier and the carriage-that isto say, the carrier will always maintain the same relative position tothe carriage and to the frame of the machine when the carriage is in agiven position.

When, for instance, the carriage is centrally disposed, as shown in Fig.2, the carrier will likewise be moved to a central position by theflexible connections. When the carriage is moved to the extreme left,one half of the extent of that movement will be transmitted to thecarrier, so that the carriage will move on the antifriction-rollers onehalf the extent of its movement and the other half of its travel will beeii'ected by a rolling action of the antifriction-rollers on their fixedtracks, and the carrier partakes of this latter movement, which isrendered positive by the positive iiexible connections between thecarriage, the carrier, and the fixed portion of the machine, so that thecarrier will always bear the same relation to the frame of the machineand to the carriage, said relation corresponding to the position of thecarriage. When tlie carriage is moved to the extreme right, the carrierand antifriction rollers will in a like manner receive a movementcorresponding to one-half of the travel of the carriage, and

manor? this relation 'will at all times be positively maintained by theiiexible connections.

Depending from the lower side of the carriage-bar is a hook 23, which isadapted to receive an engaging loop 24, secured to one end of a iiexibleband of the ligament 25, that extends around the pulley 26, carried inbearings on the top plate, of the machine and at the left-hand sidethereof. The opposite end of this band extends downwardly, asrepresented in Fig. 1, and is connected to a suitable spring-drum, (notshown,) which affords a movement of the carriage in the direction of itsfeed.

It should be understood that by the term antifriction-rollers Icontemplate either antifriction-balls of the character shown or anysuitable antifriction-rollers, which, however, are preferably looselyseated in apertures in the separator or carrier.

From the foregoing description it will be seen that I have provided asimple and efficient device for supporting the carriage in place toprovide a free and easy action or movement thereof without liability ofthe carriage binding at its bearings.

What I claim as new, and desire tosecure by Letters Patent, is-

1. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, and flexibleconnections for causing the said rollers always to maintain their properrelationship to said carriage.

2. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, and exibleconnections for causing the said rollers always to maintain their properrelationship to the frame of' the machine.

3. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, and flexibleconnections for causing the said rollers always to maintain their properrelationship to the frame of the machine and to the carriage.

L1. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers, and iiexible connections fory said carrier tomaintain fixed relations between said carrier and the frame of themachine.

l5. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers, and flexible connections for said carrier tomaintain fixed relations between said carrier and the frame of themachine and between said carrier and the carriage.

6. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers and flexible connections that IOO IIO

are operatively connected tothe carriage, to the carrier and to a lixedportion of the machine.

v7. In atype-writing machine, the combination of a carriage,antiiriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers, and flexible connections each secured at one endto the carriage and at the opposite end to a xed portion of the machineand operatively connected to the carrier,

8. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting saidcarriage, a carrier for saidantifriction-rollers, pulleys on said carrier, and flexible connectionswhich pass around said pulleysand each of which is connected at one endto the carriage and at the opposite end to a xed portion of the machine.

9 Ina type-writing machine, the combination of a carriage, fixed trackstherefor, cooperating tracks on the carriage, antifrictionrollers whichrun on said tracks for supporting said carriage, a carrier for saidantifriction-rollers, pulleys on said carrier, and oppositely-disposediiexible connections which pass around said pulleys and extend in thegeneral direction of the travel of the carriage, and each of which isconnected at one end to the carriage and at the opposite end to axedportion of the machine. A

10. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers and iiexible connections each of which is connectedto the carrier by a rolling connection and which is secured at one endto a fixed portion of the machine and at the other end to the carriage.

11. In a type-writing machine, the combination of a carriage havingoppositely-disposed antifrictionroller receiving tracks, fixed railshaving oppositely disposed antifriction-roller-receiving tracks,antifrictionrollers contained in said tracks, a separator or carrierthat cooperates with the antifriction-rollers of both sets of tracks,and oppositely-disposed flexible connections each of which is connectedat one end to a ixed portion of the machine and at the other end to thecarriage, the bight or loop in each connection being operativelyconnected to and rolling on the carrier.

l2. Inra type-writing machine, the combination of a carriage,bearing-rollers therefor, a separator for said rollers and flexibleconnections for eifecting a travel of the carrier of substantiallyone-half..the extent of travel of the carriage.

13. In a type-Writing machine, the combination of fixed tracks, acarriage, tracks on said carriage, antifriction-rollers interposedbetween the xed tracks and the tracks on the carriage, a separator Jforsaid rollers, flexible connections that have a sliding or rollingconnection with the carrier and each of which is connected at one end toa fixed portion of the machine and at the opposite end to the car--vriage and which are eiiective to move the separator substantiallyone-half the extent oif movement of the carriage.

14. In a type-writing machine, the combination oi' Exed tracks, acarriage, tracks on said carriage, antit'riction-rollers interposedbetween the fixed tracks and the tracks on the carriage, a separator forsaid rollers, pulleys pivoted on said separator, flexible connectionsthat pass around said lpulleys and extend in opposite directionstherefrom, and each of which is connected at one end to a lixed portionof the machine and at the other end to the carriage, whereby theseparator receives substantially one-half the extent of movement givento the carriage.

15. In a type-writing machine, the combination of a carriage-bar havingoppositelydisposed grooved tracks one of which faces toward the frontand the other toward the rear of the machine, cooperatingoppositely-disposed ixed grooved tracks, antifriction-rollers interposedbetween the grooved tracks in the carriage-bar and the fixed groovedtracks, a separator having openings in which said antifriction-rollersare loosely seated, pulleys on said separator, iiexible connectionswhich pass around said pulleys and each of which is connected at one endto a fixed portion of the machine and at the opposite end to thecarriage.

16. In a type-writing machine, the combination of a carriage-bar havingoppositelydisposed grooved tracks, one of which faces toward the frontand the other toward the rear of the machine, cooperatingoppositely-disposed fixed grooved tracks, antifriction-balls interposedbetween the grooved tracks in the carriage-bar and the fixed groovedtracks, and which support the carriage-bar in place, a

separator having openings in which said antif friction-balls are looselyseated, pulleys on said separator, flexible connections which passaround said pulleys and extend therefrom in opposite directions and eachof which is connected at one end to a fixed portion of the machine andat the vopposite end to the carriage, whereby the separator will receivesubstantially one-half the extent of movement given to the carriage.

17. In a type-writing machine, the combination of a carriage,antifriction-roller's for supporting said carriage, flexible connectionsfor maintaining fixed relations between said carriage and saidantifriction rollers, and means for taking up the slack in saidconnections.

18. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, iexible connectionsfor maintaining fixed relations between said IOO IIO

carriage and said antifriction-rollers and between theantifriction-rollers and the frame of the machine, and means forautomatically taking up the slack in said connections.

19. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers, flexible connections for said carrier to maintainfixed relations between said carrier and the frame of the machine, andsprings for automatically taking up the slack in said flexibleconnections.

20. In a type-Writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, a carrier for saidantifriction-rollers, pulleys on said carrier, and flexible connectionswhich passvaround said pulleys and each of which is connected at one endto the carriage and at the opposite end to a spring which is secured atone end to a iixed portion of the machine.

21. In a type-writing machine, the combination of a carriage, iixedtracks therefor, cooperating tracks on the carriage, antifrictionrollerswhich run on -said tracks for supporting frsaow 1 sitely-disposedflexible connections which pass around said pulleys and extend in thegeneral direction ofthe travel of the carriage, and each of which isconnected at one end to the carriage and at the opposite end to meansfor automatically taking up the slack in the associated connection.

22. In a type-writing machine, the combination of a carriage,antifriction-rollers for supporting said carriage, and means includingflexible connections for causing each of said rollers always to assume adefinite position along the bearing therefor at each point in the travelof the carriage.

Signed at the borough of Manhattan, city of New York, in the county ofNew York and State of New York, this 19th day of November, A. D. 1902.

CHARLES W. WALKER.

Witnesses:

K. V. DONOVAN, E. M. WELLs.

